CVE-2020-28208

An email address enumeration vulnerability exists in the password reset function of Rocket.Chat...

5.3 Medium

An email address enumeration vulnerability exists in the password reset function of Rocket.Chat through 3.9.1.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

10.8%Up 9.0 points since Apr 14, 2021

What each source reports

NVD Score used 5.3

An email address enumeration vulnerability exists in the password reset function of Rocket.Chat through 3.9.1.

Record: CVE-2020-28208
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-203
Updated: 2026-11-02

CVE List No score

An email address enumeration vulnerability exists in the password reset function of Rocket.Chat through 3.9.1.

Record: CVE-2020-28208
Updated: 2026-11-02

EUVDEUVD-2020-20692 No score

An email address enumeration vulnerability exists in the password reset function of Rocket.Chat through 3.9.1.

Record: EUVD-2020-20692
Updated: 2026-11-03

GitHub AdvisoriesGHSA-9mpj-44vg-wf94 No score

An email address enumeration vulnerability exists in the password reset function of Rocket.Chat...

An email address enumeration vulnerability exists in the password reset function of Rocket.Chat through 3.7.1.

Record: GHSA-9mpj-44vg-wf94
Weakness: CWE-203
Updated: 2026-11-02

OSV 5.3

An email address enumeration vulnerability exists in the password reset function of Rocket.Chat through 3.9.1.

Record: CVE-2020-28208
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

Affected products

rocket.chat

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Nuclei	Rocket.Chat <3.9.1 - Information Disclosure

History

History
Recorded	Changed	Sources
Nov 10, 2026	facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, Nuclei, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-28208 is a medium vulnerability (CVSS 5.3) in Rocket.chat, published January 8, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 10.8%, the 95th percentile. No source names a fixed version.

References

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